Functionality confirmed before listing. Used sparingly, it's a pre-owned item. Earphone tips for WF-1000XM4 have been replaced. Charging cable included. Wireless stereo headset h.ear in Wireless (MDR-EX750BT) Supports High-Resolution Audio transmission technology "LDAC (TM)" Equipped with a compact, high-sensitivity 9mm driver unit Built-in microphone for hands-free calls Slim shape that fits comfortably around the neck, ideal for long-term wear Continuous music playback time: up to 7.5 hours One-touch connection (NFC) function (＊) Easy first-time Bluetooth connection Easy connection with a touch Easy disconnection with a touch Easy switching of connections with a touch Supports multi-pairing and multi-point Voice guidance function included Comfortable and secure fit Includes a carrying pouch that matches the body color When the power is off, supports High-Resolution Audio playback via a dedicated headphone cable